IfcRelSpaceBoundary_1068936IfcRelSpaceBoundary_1068967IfcRelSpaceBoundary_1068995IfcRelSpaceBoundary_1069023IfcRelSpaceBoundary_1069051IfcRelSpaceBoundary_1069079IfcRelSpaceBoundary_1069107IfcRelSpaceBoundary_1069137IfcRelSpaceBoundary_1069165IfcRelSpaceBoundary_1069193IfcRelSpaceBoundary_1069221IfcRelSpaceBoundary_1069249IfcRelSpaceBoundary_1069285IfcRelSpaceBoundary_1077893IfcRelSpaceBoundary_1077921